British industrial and engineering group Rolls-Royce Holdings Plc (LON:RR) on Tuesday said it had taken over US nuclear engineering services provider PKMJ Technical Services, in a move to grow its global civil nuclear business.

The buyer provided no financial details.

PKMJ offers services and solutions to nuclear utilities in the US and Canada that help manage, enhance and extend the lifetime of nuclear power plants. Its president Paul Tobin sees the deal to ensure a platform for growing its plant optimisation service portfolio, he said in a comment.

Rolls-Royce’s nuclear services business accounts for more than half of its civil nuclear operations. It provides support to operational reactors in 20 countries in Europe, North America and Asia.

The group had underlying revenues of GBP11.3bn (USD18.2bn/EUR14bn) in 2011, with provision of services generating more than half of that amount, it said.